Norwegian Red List (2021): Ikke valgtAlle rødlistekategorierData DeficientNear ThreatenedVulnerableEndangeredCritically EndangeredRegionally Extinct
Opigena polygona Nils Rogn (2022-08-30)
Opigena polygona Lars Erik Johannessen (2009-09-05)
Opigena polygona Lars Erik Johannessen (2009-08-30)
Opigena polygona Lars Erik Johannessen (2009-08-30)